Massachusetts Institute of Technology

Consejo Superior De Investigaciones Cientificas

Plenoptika, Inc.

Daryl Lim

Nicholas James Durr

Shivang Rajendra Dave

Carlos Dorronsoro Díaz

Susana Marcos Celestino

Eduardo Lage Negro

An apparatus, and corresponding method, for determining a refractive property of an eye includes a housing with a port configured to receive an eye and also light from the eye. A tunable lens can be mounted to the housing to apply a variable focal power to the light from the eye and to pass the light along an optical path toward a wavefront sensor within the housing. The wavefront sensor can receive the light via the optical path and measure a wavefront thereof. A determination module can be configured to determine a property of the eye based on the wavefront. Embodiments can be handheld, portable, and open view, while providing objective wavefront aberrometry, subjective phoroptry, and accommodation and presbyoptic evaluation, as well as lensometry functions.

Tunable-lens-based refractive examination

Eye prescriptions may be determined by providing a simple, easy to use, portable device with a specially configured targeting light source that aligns the eye, mitigates accommodation, and provides accurate results. Unlike stationary, closed view autorefractors, this device typically is portable, self-usable, relatively inexpensive, enabling more widespread use across the world.

Apparatus and method of determining an eye prescription

Growing community of inventors

Singapore, Singapore

Daryl Lim